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A109467
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4 X 4 analogue of A094943.
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1
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1, 26, 256, 2472, 25056, 250016, 2499456, 25002112, 249995776, 2500000256, 25000032256, 249999869952, 2500000260096, 25000000004096, 249999997894656, 2500000008404992, 24999999983190016, 250000000000065536, 2500000000134086656, 24999999999463391232
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(n+4)=4*a(n+3)+44*a(n+2)+144*a(n+1)+160*a(n), a(0) = 1, a(1) = 26, a(2) = 256, a(3) = 2472.
G.f.: (1+22*x+108*x^2+160*x^3)/(1-4*x-44*x^2-144*x^3-160*x^4).
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CROSSREFS
| Sequence in context: A108645 A086023 A125389 * A126547 A136922 A136921
Adjacent sequences: A109464 A109465 A109466 * A109468 A109469 A109470
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), based on email from Alec Mihailovs, Aug 28 2005
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